Yes, the Eurail Pass is fully integrated with Deutsche Bahn (DB), Germany's national railway, making it one of the most effective ways to explore the country. It is valid on all DB-operated trains, including the high-speed ICE (Intercity Express), IC (Intercity), and EC (EuroCity) trains, as well as the regional S-Bahn, RE, and RB networks. A significant benefit of using Eurail in Germany is that seat reservations are optional on almost all domestic long-distance trains; you can simply board any ICE train and sit in any unreserved seat. However, reservations are highly recommended during peak holiday periods and are mandatory for certain international routes, such as the ICE or TGV lines connecting Germany to Paris or Brussels. For travelers using a Global Pass, Germany serves as a major hub where many cross-border "Nightjet" sleeper trains also accept Eurail, though these require a mandatory supplement and advance booking for a couchette or bed. To manage your trips, the "DB Navigator" app or the Eurail "Rail Planner" app can be used to track schedules and verify which specific private lines are covered.